Which methods are used to transfer heat?

The correct choice identifies conduction, convection, and radiation as the primary methods used to transfer heat.

Conduction refers to the transfer of heat through direct contact between materials. When two objects at different temperatures come into contact, heat will flow from the hotter object to the cooler one until they reach thermal equilibrium. This method is most significant in solids, where molecules are closely packed and can effectively transfer vibrational energy.

Convection is the transfer of heat through the movement of fluids, which can be liquids or gases. In this process, warmer areas of a liquid or gas rise while cooler areas sink, creating a cycle that facilitates heat transfer. This process is crucial in various environments, such as atmospheric and oceanic currents.

Radiation, on the other hand, is the transfer of heat in the form of electromagnetic waves. Unlike conduction and convection, it does not require a medium; heat can be transferred through a vacuum. This is the mechanism by which the sun heats the Earth.

Overall, these three methods are fundamental to understanding heat transfer in many applications, including those related to commercial drying processes in restoration work. They are essential for effectively managing moisture removal and understanding how to dry materials efficiently.

The other options incorporate terms or concepts that do not accurately reflect